|Rank|Nation|Gold|Silver|Bronze|Total|
|---|---|---|---|---|---|
|1|Brazil|9|0|0|9|
|2|Argentina|0|7|1|8|
|3|Uruguay|0|1|4|5|
|4|Dominican Republic|0|1|0|1|
|5|Chile|0|0|1|1|
|5|Greenland|0|0|1|1|
|5|Paraguay|0|0|1|1|
|5|Puerto Rico|0|0|1|1|
|Total|Total|9|9|9|27|

Question: how many countries received silver medals?
Answer: 3